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Kinetics Of The Photosubstitution Of Cis-Bis(Benzonitrile)Dichloroplatinum(Ii) In Chloroform, Eric M. Jaryszak, Son L. Phan, Patrick E. Hoggard
Kinetics Of The Photosubstitution Of Cis-Bis(Benzonitrile)Dichloroplatinum(Ii) In Chloroform, Eric M. Jaryszak, Son L. Phan, Patrick E. Hoggard
Chemistry and Biochemistry
Under 254 nm irradiation cis-[Pt(C6H5CN)2Cl2] is converted to H2PtCl6. Absorption of light by both the metal complex and the solvent contribute to the first step of this process, suggested to form HPt(C6H5CN) Cl3. A linear dependence of the reaction rate on light intensity appears to rule out chlorination by trichloromethyl radicals. However, at higher light intensities a higher order dependence on intensity develops, and under 313 nm irradiation is dominant, and a reaction between trichloromethyl radical and the excited state complex is proposed to account for this.